v3.26.1
Financial and capital risk management (Details 7)
$ in Millions
Dec. 31, 2025
USD ($)
Bunker Crude Oil [Member] | Risk Bunker Oil Price Decrease [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities $ (5)
Bunker Crude Oil [Member] | Risk Bunker Oil Price Decrease [Member] | Sensitivity Scenario I [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (125)
Bunker Crude Oil [Member] | Risk Bunker Oil Price Decrease [Member] | Sensitivity Scenario Ii [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (423)
Forwards Frieght [Member] | Risk Bunker Oil Price Decrease [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities 15
Forwards Frieght [Member] | Risk Bunker Oil Price Decrease [Member] | Sensitivity Scenario I [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities 2
Forwards Frieght [Member] | Risk Bunker Oil Price Decrease [Member] | Sensitivity Scenario Ii [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities (11)
Hedge Fixed Price Nickel Sales [Member] | Risk Nickel Price Decrease [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities 5
Hedge Fixed Price Nickel Sales [Member] | Risk Nickel Price Decrease [Member] | Sensitivity Scenario I [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities 5
Hedge Fixed Price Nickel Sales [Member] | Risk Nickel Price Decrease [Member] | Sensitivity Scenario Ii [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities 5
Hedge For Fixed Price Cobalt Sales [Member] | Risk Nickel Price Decrease [Member]  
IfrsStatementLineItems [Line Items]  
Fair value of liabilities $ 1